Shameless Preview: A Sober Frank?!?

Shameless Preview: A Sober Frank?!?

Looking ahead, this Showtime series patriarch will attempt something even more incredible on next week's new episode: sobriety. On "It's Time To Kill The Turtle," Sheila worries that she'll lose Frank after he gives up drinking, while Fiona tries to find a higher paying job.

And wonders if she's the victim of infidelity. Watch the official preview for this installment now: